Tandem type radiation evaporation refrigeration device

Abstract

The utility model provides a tandem type radiation evaporation refrigeration device, and relates to the field of refrigeration devices. Comprising a refrigeration part body and a mounting structure, the refrigeration part body comprises a radiation refrigeration layer and an evaporative cooling layer which are stacked, the radiation refrigeration layer is made of lignin-removed wood, and the evaporative cooling layer is made of a water absorption material; the installation structure comprises a heat insulation part and two sliding groove parts, the heat insulation part wraps the peripheral side of the refrigeration part body, the two sliding groove parts are arranged on the two opposite sides of the refrigeration part body respectively, one end of each sliding groove part is open, the other end of each sliding groove part is closed, and the two opposite sides of the heat insulation part are connected to the sliding groove parts in a sliding mode. The power limitation of traditional evaporation and radiation refrigeration can be overcome, radiation refrigeration and evaporation cooling are integrated and matched with each other, and daytime passive refrigeration with high power and weak weather dependence is achieved.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration devices, in particular to a series-connected radiation evaporation refrigeration device. Background Art

[0002] Global industrialization and population growth have led to an increasing demand for refrigeration, while traditional refrigeration technology based on compressed steam consumes a lot of electricity and exacerbates global warming.

[0003] As a passive cooling technology, radiative cooling has attracted wide attention from researchers around the world. In recent years, researchers have proposed many sophisticated daytime radiative cooling designs, such as photonic crystal structures, composite superstructures, cooling wood, and organic structural materials. These designs can achieve 40 to 110W m2 of cooling power in clear, direct sunlight. -2 However, due to the theoretical power limit of radiant cooling, its cooling power is difficult to increase further. In addition, its actual radiant cooling performance is heavily dependent on clear weather, low air humidity and other conditions.

[0004] Therefore, it is particularly important to study a series radiation evaporative cooling device that can overcome the fundamental limitations of traditional evaporative and radiation cooling. Utility Model Content

[0005] The utility model aims to provide a series-type radiation evaporative cooling device, which can overcome the power limitation of traditional evaporative and radiation cooling and realize high-power, weak weather-dependent daytime passive cooling.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A series radiation evaporative cooling device comprises a cooling element body and a mounting structure, wherein the cooling element body comprises a stacked radiation cooling layer and an evaporative cooling layer, wherein the radiation cooling layer is made of delignified wood, and the evaporative cooling layer is made of a water-absorbing material;

[0008] The mounting structure includes a heat insulating member and two slide members, wherein the heat insulating member is coated on the peripheral side of the refrigeration member body, and the two slide members are respectively arranged on opposite sides of the refrigeration member body, one end of the slide member is open, and the other end of the slide member is closed, and the opposite sides of the heat insulating member are slidably connected to the slide members.

[0009] Furthermore, in the utility model, a water storage space is provided between the heat insulating member and the evaporative cooling layer.

[0010] Furthermore, in the present invention, the inner wall of the thermal insulation member close to the evaporative cooling layer and away from the radiant cooling layer is stepped, so that the gap between the evaporative cooling layer and the thermal insulation member forms the water storage space.

[0011] Furthermore, in the utility model, a water storage baffle is provided at one end of the heat insulation component close to the water storage space.

[0012] Furthermore, in the utility model, a water storage box is provided on the side of the evaporative cooling layer away from the radiation cooling layer, and an area of ​​the evaporative cooling layer less than 1 / 2 of its thickness is placed in the water storage box, and one end of the water storage box passes through one end of the thermal insulation component and extends outward to form the water storage space.

[0013] Furthermore, in the present invention, the slide member is installed on the refrigeration equipment through a connecting member.

[0014] Furthermore, in the present invention, the material of the evaporative cooling layer is fiber fabric.

[0015] Furthermore, in the utility model, the thermal insulation member is made of polyurethane foam, polystyrene foam or phenolic resin foam.

[0016] The utility model has at least the following advantages or beneficial effects:

[0017] The utility model sets a stacked radiation cooling layer and an evaporative cooling layer. When installed, the radiation cooling layer is located on the outer side, which can efficiently reflect sunlight and radiate heat. The evaporative cooling layer is located on one side of the radiation cooling layer, which can store moisture for evaporative cooling during the day in weak weather. By setting a heat insulating member around the refrigeration unit body, the refrigeration unit body can be fixed, and at the same time, the external heat transferred to the refrigeration unit body can be reduced to form a cold air zone. By setting two slide members, which slide with the heat insulating member, the refrigeration unit body can be installed on any refrigeration equipment to improve the application scenario. The present application can overcome the power limitations of traditional evaporative and radiation refrigeration, integrate radiation refrigeration and evaporative cooling into one, and cooperate with each other to achieve high-power, weak weather-dependent daytime passive cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1A schematic diagram of the overall structure of a series-type radiation evaporative cooling device provided in an embodiment of the present application;

[0020] Figure 2 A partial structural cross-sectional view of a series-type radiation evaporative cooling device provided in an embodiment of the present application;

[0021] Figure 3 A partial structural cross-sectional view of a series-type radiation evaporative cooling device provided in one embodiment of the present application;

[0022] Figure 4 A partial structural schematic diagram of a series-type radiation evaporative cooling device provided in another embodiment of the present application;

[0023] Figure 5 A partial structural cross-sectional view of a series-type radiation evaporative cooling device provided in another embodiment of the present application.

[0024] Icons: 1-refrigeration component body, 11-radiation refrigeration layer, 12-evaporative cooling layer, 2-insulation component, 3-chute component, 4-water storage space, 41-water storage baffle, 42-water storage box. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] Please refer to Figure 1-Figure 5 , which is a schematic diagram of the structure of a series-type radiation evaporative refrigeration device in an embodiment of the utility model;

[0029] This embodiment provides a series-type radiation evaporative cooling device, including a cooling element body 1 and a mounting structure, wherein the cooling element body 1 includes a stacked radiation cooling layer 11 and an evaporative cooling layer 12, wherein the radiation cooling layer 11 is made of delignified wood, and the evaporative cooling layer 12 is made of a water-absorbing material;

[0030] The mounting structure includes a heat insulating member 2 and two slide members 3. The heat insulating member 2 is wrapped around the circumference of the refrigeration member body 1. The two slide members 3 are respectively arranged on opposite sides of the refrigeration member body 1. One end of the slide member 3 is open and the other end of the slide member 3 is closed. The opposite sides of the heat insulating member 2 are slidably connected to the slide members 3.

[0031] Next, the series-connected radiant evaporative cooling device of this exemplary embodiment will be further described.

[0032] In some embodiments of the present application, reference Figure 1-Figure 2 The refrigeration component body 1 includes a stacked radiation cooling layer 11 and an evaporative cooling layer 12. The radiation cooling layer 11 is made of delignified wood, and the evaporative cooling layer 12 is made of a water-absorbing material. The delignified wood of the radiation cooling layer 11 has excellent radiation cooling performance, and can efficiently reflect sunlight and radiate energy in strong weather. The water-absorbing material of the evaporative cooling layer 12 can absorb and store water for evaporative cooling in weak weather. At the same time, the delignified wood has a porous structure, which can provide channels for water and steam transportation, improve evaporation efficiency, and optimize the refrigeration effect.

[0033] As a preferred embodiment, a plurality of compound microspheres are bonded to the surface of the radiation cooling layer 11 on the side away from the evaporative cooling layer 12, and the particle size of the compound microspheres is 0.5 μm-5 μm.

[0034] Specifically, the above-mentioned compound microspheres can be oxides, fluorides, carbides, nitrides or carbonitrides. By bonding microspheres with a particle size of only 0.5μm-5μm on their surface, their surface area can be increased to achieve strong reflection of ultraviolet, visible light and near-infrared light, which can significantly improve radiation heat dissipation.

[0035] As a preferred embodiment, the material of the evaporative cooling layer 12 is a fiber fabric, specifically cotton fiber, viscose fiber or synthetic fiber, and the synthetic fiber is one of polyvinyl acid fiber, polyphthalamide fiber and polyacrylonitrile fiber. The material is a fiber fabric with high moisture absorption capacity, allowing water to fully flow through the entire evaporative cooling layer 12, dissipating heat in the form of forced convection while having a high evaporation rate. Compared with other materials such as hydrogel, it has excellent water retention and recycling performance, and can improve the evaporative cooling efficiency.

[0036] As a preferred embodiment, the above-mentioned radiation cooling layer 11 can also be filled with cellulose nanocrystals and delignified wood composites, wherein the cellulose nanocrystals have a width of 5nm-10nm and a length of 100nm-300nm, have high emissivity in the mid-infrared atmospheric window, can significantly improve radiation heat dissipation, and can achieve wide spectrum precise control of ultraviolet, visible light, near-infrared and mid-infrared bands, giving the material excellent radiation cooling performance.

[0037] In some embodiments of the present application, reference Figure 1 The above-mentioned installation structure includes a heat insulation member 2 and two slide members 3. The heat insulation member 2 is coated on the peripheral side of the refrigeration member body 1. The two slide members 3 are respectively arranged on the opposite sides of the refrigeration member body 1. One end of the slide member 3 is open, and the other end of the slide member 3 is closed. The opposite sides of the heat insulation member 2 are slidably connected to the slide member 3. By coating the heat insulation member 2 on the peripheral side of the refrigeration member body 1, the refrigeration member body 1 can be fixed and heat-insulated and protected, and the external heat can be reduced. Transfer to the double-layer porous structure to form a cold air interval. And by arranging the slide members 3 on both sides to slide with the heat insulation member 2, the refrigeration member body 1 can be installed on any refrigeration equipment through the slide member 3. Specifically, the slide member 3 is first fixed to the outer surface of the facility equipment through a connecting member such as a bolt, and then the heat insulation member 2 of the refrigeration member body 1 is slidably pushed from the open end into the slide member 3 to the closed end to be fixed. It is easy to disassemble and replace, especially in the field of cooling facilities and equipment such as buildings, outdoor electronic equipment, transportation, power plants and air conditioners. Provides a wide range of application prospects.

[0038] As a preferred embodiment, a water storage space 4 is provided between the thermal insulation member 2 and the evaporative cooling layer 12. The water storage space 4 is used to store water, provide water transportation for the evaporative cooling layer 12, and keep sufficient water for evaporative cooling so as to continuously maintain evaporative cooling.

[0039] In a specific embodiment, referring to Figure 3 The inner wall of the thermal insulation 2 close to the evaporative cooling layer 12 and away from the radiation cooling layer 11 is stepped, so that the gap between the evaporative cooling layer 12 and the thermal insulation 2 forms a water storage space 4, and the radiation cooling layer 11 and the evaporative cooling layer 12 are covered and plugged with the thermal insulation 2, so that the water storage space 4 is separated from the radiation cooling layer 11 by the evaporative cooling layer 12, and will not affect the radiation cooling in strong weather. The above structural design is suitable for vertical installation of the refrigeration device. When installed vertically, the radiation cooling layer 11 faces outward, the evaporative cooling layer 12 faces inward, and the water storage space 4 is located at the bottom of the inner side. Water is stored in the water storage space 4 for continuous water absorption and moistening of the evaporative cooling layer 12, which improves the cooling efficiency.

[0040] Furthermore, a water storage baffle 41 is provided at one end of the heat insulation member 2 close to the water storage space. By providing the water storage baffle 41, the water storage volume of the water storage space 4 can be increased.

[0041] In another specific embodiment, referring to Figure 3-Figure 5, a water storage box 42 is provided on the side of the evaporative cooling layer 12 away from the radiation cooling layer 11, and an area of ​​the evaporative cooling layer 12 less than 1 / 2 of its thickness is placed in the water storage box 42, and one end of the water storage box 42 passes through one end of the heat insulating member 2 and extends outward to form a water storage space 4. The above structural design is suitable for horizontal installation of the refrigeration device. When installed horizontally, the radiation cooling layer 11 is located at the top, and the evaporative cooling layer 12 is located at the bottom. The water storage box 42 contacts the bottom of the evaporative cooling layer 12, and extends out of the heat insulating member 2 to form a water storage space 4 for water storage, so that the evaporative cooling layer 12 continuously absorbs water and moistens, performs evaporative cooling, and thus improves the cooling efficiency.

[0042] It should be noted that when assembling the above structure, the thermal insulation component 2 can be set as multiple separate parts, which can be separately covered from all sides of the refrigeration component body 1 and the water storage box 42. After covering, the multiple parts of the thermal insulation component 2 can be connected into one by bonding or mutual plugging, thereby facilitating manufacturing and assembly.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A series radiation evaporative cooling device, characterized in that: It comprises a refrigeration unit body and a mounting structure, wherein the refrigeration unit body comprises a stacked radiation refrigeration layer and an evaporative cooling layer, wherein the radiation refrigeration layer is made of delignified wood, and the evaporative cooling layer is made of a water-absorbing material; The mounting structure includes a heat insulating member and two slide members, wherein the heat insulating member is coated on the peripheral side of the refrigeration member body, and the two slide members are respectively arranged on opposite sides of the refrigeration member body, one end of the slide member is open, and the other end of the slide member is closed, and the opposite sides of the heat insulating member are slidably connected to the slide members.

2. The series radiation evaporative cooling device according to claim 1, characterized in that: A water storage space is provided between the heat insulating member and the evaporative cooling layer.

3. The series radiation evaporative cooling device according to claim 2, characterized in that: The inner wall of the heat insulating member close to the evaporative cooling layer and away from the radiative cooling layer is stepped, so that the gap between the evaporative cooling layer and the heat insulating member forms the water storage space.

4. The series radiation evaporative cooling device according to claim 3, characterized in that: A water storage baffle is provided at one end of the heat insulation member close to the water storage space.

5. The series radiation evaporative cooling device according to claim 2, characterized in that: A water storage box is provided on the side of the evaporative cooling layer away from the radiation cooling layer, and an area of ​​the evaporative cooling layer less than 1 / 2 of its thickness is placed in the water storage box. One end of the water storage box passes through one end of the insulation component and extends outward to form the water storage space.

6. The series radiation evaporative cooling device according to claim 1, characterized in that: The slide member is installed on the refrigeration equipment through a connecting member.

7. The series radiation evaporative cooling device according to claim 1, characterized in that: The material of the evaporative cooling layer is fiber fabric.

8. The series radiation evaporative cooling device according to claim 1, characterized in that: The thermal insulation member is made of polyurethane foam, polystyrene foam or phenolic resin foam.

9. The series radiation evaporative cooling device according to claim 1, characterized in that: A plurality of compound microspheres are bonded to a surface of the radiation cooling layer on a side away from the evaporative cooling layer, and the particle size of the compound microspheres is 0.5 μm-5 μm.

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